Ni₄₃Mn₄₁Co₅Sn₁₁合金异质结构薄膜的磁特性及其调制  

Magnetic Property and Its Electric-Field Modulation Effect in Ni43Mn41Co5Sn11/PMN-PT Laminate Thin Film

作　　者：李赫 徐宏宇 林小燕 叶晴莹 李智炜 陈水源 

机构地区：[1]福建师范大学物理与能源学院,福建省量子调控与新能源材料重点实验室,福建 福州

出　　处：《材料科学》2023年第3期143-149,共7页Material Sciences

摘　　要：采用脉冲激光沉积法在PMN-PT铁电单晶上沉积Ni43Mn41Co5Sn11合金,制备得到NMCS/Au/PMN-PT复合磁电薄膜。采用X射线衍射仪(XRD)和扫描电镜(SEM)对样品进行结构分析;利用综合物性测量系统(PPMS)和磁电综合测试系统研究了磁特性及电场对磁性的调制作用,实验结果表明,Ni43Mn41Co5Sn11铁磁形状记忆合金在测量温区实现了奥氏体到马氏体的一级相变,伴随着磁性的明显变化;电场对薄膜的磁性有调制作用,即存在逆磁电效应。这一体系中的电场调制磁性具有丰富的基础物理研究意义,在传感、电磁探测和信息存储领域有着潜在应用前景。NMCS/Au/PMN-PT composite magnetoelectric thin film was prepared by pulsed laser deposition. X-ray diffractometer (XRD) and scanning electron microscope (SEM) were used to analyze the structure of the thin film. The magnetic properties of Ni43Mn41Co5Sn11 ferromagnetic shape memory alloy (FSMA) and the modulation effect of electric field on magnetic properties were studied by the Physical Properties Measurement System (PPMS) and the Magnetoelectric Measurement System. The experimental results show that, accompanied by obvious magnetization change, the NMCS alloy processes the first-order phase transition from austenite to martensite in the measured temperature region. The electric field can obviously modulate the magnetism of the film, that is, there exists converse mag-netoelectric effect (CME). The electric-field modulating effect on magnetism in this system has abundant basic physics research significance, and presents potential application prospect in the fields of sensors, electromagnetic detection and information storage.

关 键 词：HEUSLER合金 磁电异质结 脉冲激光沉积 磁特性 逆磁电效应 

分 类 号：TG1[金属学及工艺—金属学]